Heres a tool to extract levels out of kotor and TSL. If you need to covert the models you could use a converter like 3d object converter. Not shure if these would work in game after edit and conversion but its worth a try.

NOTE:This is slightly different from glintercept.....

This is the OpenGLXtractor Windows Tool!

With this tool, it is possible to Capture 3D Data from an OpenGL Application.